WO2018196348A1 - 背光模组和显示装置 - Google Patents

背光模组和显示装置 Download PDF

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Publication number
WO2018196348A1
WO2018196348A1 PCT/CN2017/111326 CN2017111326W WO2018196348A1 WO 2018196348 A1 WO2018196348 A1 WO 2018196348A1 CN 2017111326 W CN2017111326 W CN 2017111326W WO 2018196348 A1 WO2018196348 A1 WO 2018196348A1
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WIPO (PCT)
Prior art keywords
light
guide plate
quantum dot
backlight module
dot layer
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PCT/CN2017/111326
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English (en)
French (fr)
Inventor
邓天应
潘俊
陈细俊
强科文
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Shenzhen TCL New Technology Co Ltd
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Shenzhen TCL New Technology Co Ltd
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors

Definitions

  • the present invention relates to the field of liquid crystal display technologies, and in particular, to a backlight module and a display device using the same.
  • quantum dot technology can be used to achieve ultra-high color gamut image quality display, so the backlights in most of the existing backlight modules use quantum dots.
  • the conventional quantum dot material is exposed to the air and is easily oxidized, it is necessary to use a barrier material to wrap the quantum dot material. This technique is complicated and costly, and it cannot be widely used in liquid crystal display.
  • the quantum dots are directly close to the light source, resulting in poor thermal reliability; and the quantum dots are used in a large amount, resulting in further increase in cost.
  • An object of the present invention is to provide a backlight module, which aims to obtain a backlight module with good thermal reliability and low cost.
  • a backlight module provided by the present invention includes:
  • each of the light emitting components comprising a light emitting chip and a light transmissive body portion covering the light emitting chip;
  • the optical films are arranged in parallel, wherein a surface of an optical film is provided with a quantum dot layer.
  • Light emitted by the light emitting chip passes through the optical film and the quantum dot layer to generate white light.
  • the light emitting chip comprises a blue LED chip and a green LED chip
  • the quantum dot layer is a red quantum dot layer
  • the light emitting chip comprises a blue LED chip and a red LED chip
  • the quantum dot layer is a green quantum dot layer.
  • the surface of an optical film adjacent to the light-emitting component is provided with the quantum dot layer, and the quantum dot layer faces the light-emitting component.
  • the quantum dot material of the quantum dot layer is a perovskite.
  • the quantum dot layer has a thickness ranging from greater than 0 mm to less than or equal to 0.01 mm.
  • the backlight module further includes a light guide plate adjacent to an end surface of the light guide plate, the optical film facing a surface of the light guide plate, the surface being adjacent to the light guide assembly and the light guide plate The end faces are connected, and the quantum dot layer is disposed on a surface of the optical film facing the light guide plate.
  • the backlight module further includes a reflective sheet, the reflective sheet is attached to a surface of the light guide plate facing away from the optical film, and an end of the reflective sheet abuts the light emitting component.
  • the blue LED chip emits light in a wavelength range of 440 nm to 450 nm.
  • Another object of the present invention is to provide a display device comprising the backlight module as described above.
  • the light source of the backlight module uses the light-emitting chip to excite the quantum dot layer on the optical film to generate white light, and the quantum dot layer is directly disposed on the surface of the optical film, and does not need to be packaged, thereby reducing preparation.
  • Process can increase production efficiency and reduce costs.
  • the light emitted by the light-emitting chip transmits the quantum dot layer after passing through the optical film, and the heat generated by the excited quantum dot layer can be emitted in time without being blocked by the packaging material, thereby improving the thermal reliability of the quantum dot layer.
  • FIG. 1 is a cross-sectional view showing an embodiment of a display device of the present invention
  • FIG. 2 is a cross-sectional view of a light emitting assembly of a backlight module in the display device of FIG. 1.
  • Label name Label name 100 Display device 16 Fixed frame 10 Backlight module 16a Installation space 11 Illuminating component 161 Straight section 111 Light transmissive body 163 Installation section 113 Light emitting chip 1631 Step slot 12 Heat sink 17 Quantum dot layer 13 Light guide 18 A reflective sheet 131 Black strip 19 Circuit board 14 Backplane 30 Display panel 15 Optical diaphragm 50 Front frame
  • first, second, and the like in the present invention are used for the purpose of description only, and are not to be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the terms "connected”, “fixed” and the like should be understood broadly, unless otherwise clearly defined and limited.
  • “fixed” may be a fixed connection, or may be a detachable connection, or may be integrated; It may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be an internal connection of two elements or an interaction relationship of two elements unless explicitly defined otherwise.
  • the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the invention provides a backlight module 10.
  • a backlight module 10 includes:
  • a plurality of light-emitting components 11 each including a light-emitting chip 113 and a light-transmissive body portion 111 that is disposed on the light-emitting chip 113;
  • a plurality of optical films 15 and optical films 15 are arranged in parallel, wherein a surface of an optical film 15 is provided with a quantum dot layer 17,
  • Light emitted from the light-emitting chip 113 passes through the optical film 15 and the quantum dot layer 17, and white light is generated.
  • the backlight of the backlight module 10 may be a side-in type or a direct type.
  • the arrangement of the light-transmitting main body portion 111 can transmit light of the light-emitting chip 113 or protect the light-emitting chip 113.
  • the optical film 15 in the backlight module 10 may include an upper diffusion sheet, a brightness enhancement sheet, a lower diffusion sheet, a prism film, and the like. The optical film 15 is used to modify the light emitted from the light-emitting assembly 11 so that the brightness of the finally emitted light is good and uniform.
  • the light source of the backlight module 10 is used to excite the quantum dot layer 17 on the optical film 15 to generate white light.
  • the quantum dot layer 17 is directly disposed on the surface of the optical film 15, and does not need to be packaged.
  • the treatment reduces the preparation process and can improve production efficiency and reduce costs.
  • the light emitted by the light-emitting chip 113 passes through the optical film 15 and excites the quantum dot layer 17.
  • the heat generated by the excited quantum dot layer 17 can be dissipated in time without being blocked by the packaging material, thereby improving the quantum dot layer 17. Thermal reliability.
  • the light-emitting chip 113 of the present invention includes two color light chips of three primary colors.
  • the light-emitting chip 113 includes a blue LED chip and a green LED chip, and the quantum dot layer 17 is a red quantum dot layer.
  • white light can be formed by mixing blue light, green light and red light. Therefore, the blue LED chip and the green light LED chip emit blue light and green light to jointly excite the red quantum dot layer, and uniform white light can be obtained.
  • the advantages of quantum dots can be utilized, for example, the size of the example is controllable and uniform. The excitation conversion efficiency is high and the light efficiency is high, so that the color gamut of the backlight module 10 can be effectively improved, the demand for high color gamut liquid crystal display is satisfied, and the image quality display effect is remarkably improved.
  • the light emitting chip 113 includes a blue LED chip and a red LED chip, and the quantum dot layer 17 is a green quantum dot layer.
  • the blue LED chip and the red LED chip emit blue light and red light to jointly excite the green quantum dot layer, thereby forming uniform white light.
  • This embodiment also reduces the use of quantum dots while ensuring high color gamut liquid crystal display, thereby also reducing the cost of the backlight module 10.
  • the blue LED chip is used for excitation to ensure the light intensity of the final emitted light.
  • the wavelength of blue light ranges from 400 nm to 480 nm.
  • the wavelength of light emitted by the blue LED chip ranges from 440 nm to 450 nm. The blue light in this wavelength range can also reduce the damage to the human eye while ensuring the intensity of the laser.
  • the material of the quantum dot layer 17 is a perovskite.
  • the quantum dot material in the quantum dot layer 17 is different from the conventional quantum dot material, and the perovskite quantum dot not only has excellent luminescence properties such as full-spectrum luminescence and high quantum efficiency, but also has high oxidation resistance.
  • the performance so that the quantum dot layer 17 can be directly applied to the optical film 15, without using a barrier sheet for protection of water and oxygen barrier, simplifies the process, thereby saving cost.
  • a surface of an optical film 15 adjacent to the light-emitting assembly 11 is provided with a quantum dot layer 17 facing the light-emitting assembly 11.
  • the quantum dot layer 17 is provided on the optical film 15, and may be applied by glue or may be formed by forming a film. Specifically, the quantum dots are applied to the optical film 15 by mixing with the UV glue, and the quantum dots in the quantum dot layer 17 are uniformly dispersed in the UV glue. Selecting the optical film 15 closest to the light-emitting component 11 to coat the quantum dot layer 17 allows the light-emitting chip 113 to directly excite the quantum dot layer 17, so that the excitation efficiency can be improved, and the amount of quantum dots can be reduced, thereby saving cost.
  • the thickness of the quantum dot layer 17 applied to the optical film 15 is set to be uniform.
  • the quantum dot layer 17 has a thickness in the range of more than 0 mm and less than or equal to 0.01 mm. The quantum dot layer 17 in the range can ensure the uniformity of the finally emitted white light and save the quantum dot.
  • the backlight module 10 further includes a light guide plate 13 adjacent to an end surface of the light guide plate 13 .
  • the optical film 15 faces a surface of the light guide plate 13 .
  • the surface is adjacent to the light guide plate 13 .
  • the end faces are connected, and the quantum dot layer 17 is provided on the surface of the optical film 15 facing the light guide plate 13.
  • the backlight is disposed in a side-entry manner, the light-emitting component 11 is located at an end surface of the light guide plate 13, and the optical film 15 is disposed above the light guide plate 13.
  • the backlight module 10 is further provided with a back plate 14 and a fixing frame 16 .
  • the fixing frame 16 is fixed to the periphery of the back plate 14 , and the back plate 14 can be a sheet metal member.
  • the fixing frame 16 can be selected from plastic or metal materials.
  • the diaphragm 15 is mounted and fixed to the fixing frame 16.
  • the fixing frame 16 includes a straight section 161 perpendicular to the backboard 14 and a mounting section 163 extending along the straight section 161.
  • the straight section 161 forms a mounting space 16a with the mounting section 163 and the backboard 14 , and the light emitting component 11 and the light guide plate 13 are mounted on the installation space 16a, and the structure is stable.
  • a heat dissipating member 12 is disposed between the light-emitting assembly 11 and the fixing frame 16, the light guide plate 13 and the back plate 14.
  • the heat dissipating member 12 is made of aluminum material, has good thermal conductivity, is easy to process, and can heat the light-emitting component 11 in time. It is emitted to ensure the service life and working performance of the light-emitting component 11.
  • a side of the mounting section 163 facing away from the backing plate 14 is provided with two stepped grooves 1631.
  • the plurality of optical films 15 are stacked in parallel and mounted on a stepped groove 1631 adjacent to the light guiding plate 13, and are disposed opposite to the light guiding plate 13, and the quantum dots are disposed.
  • the layer 17 is disposed on one side of the optical film 15 on the light guide plate 13, facilitating excitation and improving excitation efficiency.
  • a black rubber strip 131 is disposed between the surface of the light guide plate 13 and the upper surface of the light guide plate 13 for pressing the light guide plate 13 to firmly fix the light guide plate 13, and also prevents light leakage. .
  • the backlight module 10 further includes a reflective sheet 18 attached to a surface of the light guide plate 13 facing away from the optical film 15. The end of the reflective sheet 18 abuts the light-emitting assembly 11.
  • the base material of the reflective sheet 18 is generally polyethylene terephthalate (PET), and a reflective sheet 18 is disposed on the lower surface of the light guide plate 13, so that the unscattered light can be reflected again into the light.
  • the conductive region enters the light guide plate 13 and is emitted from the light guide plate 13 toward the surface of the optical film 15.
  • the reflection of the reflective sheet 18 is specular reflection to improve the utilization of the light-emitting assembly 11.
  • the end of the reflection sheet 18 abuts against the light-emitting assembly 11, and the light diverged by the light-emitting assembly 11 can be reflected, thereby further improving the utilization of light.
  • the backlight module 10 further includes a circuit board 19, and the plurality of light emitting components 11 are uniformly distributed on the circuit board 19.
  • the circuit board 19 is arranged to increase the power support of the light-emitting component 11, and other components for control can be disposed on the circuit board 19.
  • the circuit board 19 is parallel to the side of the backlight module 10, and the plurality of light-emitting components 11 are uniformly disposed on the circuit board 19, so that the provided backlight is uniformly stabilized, so that the final light intensity is evenly distributed in each part.
  • Another object of the present invention is to provide a display device 100 including a backlight module 10 and a display panel 30.
  • the backlight module 10 is the backlight module 10, and the display panel 30 is disposed on the optical film. 15 faces away from the side of the light guide plate 13. Since the backlight module 10 of the display device 100 adopts all the technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the foregoing embodiments are not repeatedly described herein.
  • the display panel 30 is a liquid crystal display panel 30, and the substrate is made of glass.
  • the display panel 30 is disposed on the mounting section 163 of the fixing frame 16, specifically, in the stepped groove 1631 away from the light guide plate 13, and the optical film.
  • the sheets 15 are arranged in parallel and completely cover the optical film 15, so that the light emitted by the backlight module 10 is entirely emitted by the display panel 30, thereby improving the picture quality.
  • the display device 100 is further provided with a front frame 50 which is made of a metal material to ensure the stability of the structure of the display device 100.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)

Abstract

一种背光模组（10）和显示装置（100），其中，背光模组（10）包括：多个发光组件（11），每一发光组件（11）均包括发光芯片（113）和罩于发光芯片（113）的透光主体部（111）；及若干光学膜片（15），光学膜片（15）平行叠放设置，其中一光学膜片（15）的表面设有量子点层（17），发光芯片（113）发出的光透过光学膜片（15）和量子点层（17），产生白光，热可靠性好且成本低。

Description

背光模组和显示装置
技术领域
本发明涉及液晶显示技术领域，特别涉及一种背光模组和应用该背光模组的显示装置。
背景技术
随着液晶电视技术发展，消费者对电视的显示画质要求也逐步提高。在现有技术中，使用量子点技术可以实现超高色域画质显示，故现有大部分的背光模组中的背光源使用了量子点。但由于传统的量子点材料暴露在空气中，容易氧化失效，需要使用阻隔材料包裹量子点材料，此技术较复杂，成本较高，导致无法在液晶显示中得到广泛应用。同时，现有的背光源结构中量子点直接靠近光源，导致其热可靠性差；且量子点使用量较大，导致成本进一步增高。
发明内容
本发明的一个目的是提供一种背光模组，旨在得到一种热可靠性好且成本低的背光模组。
为了实现上述目的，本发明提出的背光模组，包括：
多个发光组件，每一发光组件均包括发光芯片和罩于所述发光芯片的透光主体部；及
若干光学膜片，所述光学膜片平行叠放设置，其中一光学膜片的表面设有量子点层，
所述发光芯片发出的光透过所述光学膜片和量子点层，产生白光。
优选地，所述发光芯片包括有蓝光LED芯片与绿光LED芯片，所述量子点层为红色量子点层。
优选地，所述发光芯片包括有蓝光LED芯片与红光LED芯片，所述量子点层为绿色量子点层。
优选地，靠近所述发光组件的一光学膜片的表面设有所述量子点层，所述量子点层面向所述发光组件。
优选地，所述量子点层的量子点材料为钙钛矿。
优选地，所述量子点层的厚度范围为大于0mm，小于等于0.01mm。
优选地，该背光模组还包括导光板，所述发光组件邻近所述导光板的一端面，所述光学膜片面向所述导光板的一表面，该表面与发光组件邻近所述导光板的端面相连，所述量子点层设于所述光学膜片面向所述导光板的表面。
优选地，该背光模组还包括反射片，所述反射片贴设于所述导光板背离所述光学膜片的一表面，所述反射片的端部抵接所述发光组件。
优选地，所述蓝光LED芯片发出的光波长范围为440nm~450nm。
本发明的另一个目的在于提出一种显示装置，包括如上述的背光模组。
本发明技术方案中，背光模组的光源是使用发光芯片激发光学膜片上的量子点层产生白光，该量子点层直接设于光学膜片的表面，不需要进行封装处理，减化了制备工艺，可以提高生产效率，降低成本。同时，发光芯片发出的光透过光学膜片后激发量子点层，被激发的量子点层产生的热量可以及时地散发出去，不受封装材料遮挡，从而提高量子点层的热可靠性。
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的结构获得其他的附图。
图1为本发明显示装置一实施例的剖视图；
图2为图1所示显示装置中背光模组的发光组件的剖视图。
附图标号说明：
标号 名称 标号 名称
100 显示装置 16 固定框
10 背光模组 16a 安装空间
11 发光组件 161 直段
111 透光主体部 163 安装段
113 发光芯片 1631 阶梯槽
12 散热件 17 量子点层
13 导光板 18 反射片
131 黑色胶条 19 电路板
14 背板 30 显示面板
15 光学膜片 50 前框
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
需要说明，本发明实施例中所有方向性指示（诸如上、下、左、右、前、后……）仅用于解释在某一特定姿态（如附图所示）下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，在本发明中涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。
在本发明中，除非另有明确的规定和限定，术语“连接”、“固定”等应做广义理解，例如，“固定”可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
另外，本发明各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本发明要求的保护范围之内。
本发明提出一种背光模组10。
请参照图1和图2，本发明一实施例的背光模组10，包括：
多个发光组件11，每一发光组件11均包括发光芯片113和罩于发光芯片113的透光主体部111；及
若干光学膜片15，光学膜片15平行叠放设置，其中一光学膜片15的表面设有量子点层17，
发光芯片113发出的光透过光学膜片15和量子点层17，产生白光。
本实施例中，该背光模组10的背光源可以为侧入式设置，也可以是直下式设置。透光主体部111的设置，既可以使发光芯片113的光透过，也可以对发光芯片113起到保护的作用。背光模组10中的光学膜片15可包括有上扩散片、增亮片、下扩散片及棱镜膜等。光学膜片15用于对发光组件11发出的光进行相对应的修饰，使得最终出射的光亮度好且均匀。
本发明技术方案中，背光模组10的光源是使用发光芯片113激发光学膜片15上的量子点层17产生白光，该量子点层17直接设于光学膜片15的表面，不需要进行封装处理，减化了制备工艺，可以提高生产效率，降低成本。同时，发光芯片113发出的光透过光学膜片15并激发量子点层17，被激发的量子点层17产生的热量可以及时地散发出去，不受封装材料遮挡，从而提高量子点层17的热可靠性。
本发明的发光芯片113包括有三原色光中的两种色光芯片，于一实施例中，发光芯片113包括有蓝光LED芯片与绿光LED芯片，量子点层17为红色量子点层。
本实施例中，因蓝光、绿光与红光混合后可以形成白光，故而使用蓝光LED芯片与绿光LED芯片发出蓝光和绿光，共同激发红色量子点层，可以得到均匀的白光。同时，因为红色量子点层的使用，可以利用量子点的优势，例如例子大小可控、分散均匀。激发转化效率高、光效高等，从而能够有效提高背光模组10的色域，满足高色域液晶显示的需求，显著提高画质显示效果。此外，将量子点层17的色光由以前的两种换成现在的发光芯片113与一种色光的量子点层17，可以大大减少量子点的使用量，因量子点的原材料价格较高，故而本结构的背光模组10可以显著降低成本。
于另外一实施例中，发光芯片113包括有蓝光LED芯片与红光LED芯片，量子点层17为绿色量子点层。
本实施例中，蓝光LED芯片与红光LED芯片发出蓝光与红光，共同激发绿色量子点层，从而形成均匀的白光。该实施例也在保证高色域液晶显示的同时，减少了量子点的使用量，从而也可以降低背光模组10的成本。
因三原色光中蓝光的发光强度最高，故上述两种实施例中，均使用蓝光LED芯片进行激发，以保证最终出射光的光强度。蓝光的波长范围为400nm至480nm，在上述两种实施例中，选取蓝光LED芯片发出的光波长范围为440nm~450nm。该波长范围的蓝光在保证激光发强度的同时，也可以降低对人眼的伤害。
优选地，量子点层17的材料为钙钛矿。
本实施例中，量子点层17中的量子点材料不同于以往的量子点材料，钙钛矿量子点不仅具有全光谱发光、量子效率高等优异的发光性能，而且该材料具有较高的抗氧化性能，从而可以使得量子点层17直接涂覆于光学膜片15上，而不需要使用阻隔片进行隔水隔氧的保护，简化了工艺，从而节约了成本。当然，还可以使用之前的量子点材料，该材料在制备时直接包裹一层高分子材料的阻隔膜，具有隔水隔氧作用，从而可以与胶水进行混合，涂覆于光学膜片15上。
请参照图1，靠近发光组件11的一光学膜片15的表面设有量子点层17，量子点层17面向发光组件11。
本实施例中，量子点层17设于光学膜片15，可以使通过胶水涂覆，也可以是形成一层膜之后进行粘贴。具体地，量子点通过与UV胶进行混合后涂覆于光学膜片15，且量子点层17中的量子点均匀分散于UV胶。选择离发光组件11最近的光学膜片15涂覆量子点层17，可以使得发光芯片113直接激发量子点层17，从而可以提高激发效率，并且能够降低量子点的用量，节约成本。
为了使最终出射的白光强度分布均匀，故将涂覆于光学膜片15的量子点层17的厚度设置为均匀。本实施例中，量子点层17厚度范围为大于0mm，小于等于0.01mm，该范围的量子点层17既可以保证最终出射的白光的均匀性好，又可以节约量子点的用量。
请再次参照图1，该背光模组10还包括导光板13，发光组件11邻近导光板13的一端面，光学膜片15面向导光板13的一表面，该表面与发光组件11邻近导光板13的端面相连，量子点层17设于光学膜片15面向导光板13的表面。
本实施例中，背光源为侧入式设置，发光组件11位于导光板13的端面，光学膜片15设于导光板13的上方。此外，背光模组10还设置有背板14和固定框16，固定框16固接于背板14的周缘，背板14可为钣金件，固定框16可选择塑料或者金属材料，若干光学膜片15安装固定于固定框16。具体地，固定框16包括垂直于背板14的直段161及沿直段161弯折延伸的安装段163，该直段161与安装段163及背板14共同形成一安装空间16a，发光组件11及导光板13安装于该安装空间16a，结构稳固。发光组件11与固定框16、导光板13与背板14之间还设置有散热件12，该散热件12的材质为铝材，导热性能好，易加工，可以及时将发光组件11发出的热量散发出去，保证该发光组件11的使用寿命及工作性能。安装段163背离背板14的一侧设有两阶梯槽1631，若干光学膜片15平行叠放设置，安装于靠近导光板13的一阶梯槽1631上，与导光板13相对隔离设置，量子点层17设于光学膜片15面向导光板13的一侧，便于激发，并能提高激发效率。该固定框16面向导光板13的表面与导光板13的上表面之间还设置有黑色胶条131，用于压住导光板13，起到牢固固定导光板13的作用，同时也可以防止漏光。
背光模组10还包括反射片18，反射片18贴设于导光板13背离光学膜片15的一表面，反射片18的端部抵接发光组件11。
本实施例中，反射片18的基材材质一般为聚对苯二甲酸乙二醇酯（PET），在导光板13的下表面设置反射片18，可以将未被散射的光反射再次进入光传导区，即进入导光板13，并从导光板13面向光学膜片15的表面射出，反射片18的反射为镜面反射，以提高发光组件11的利用率。同时，反射片18的端部抵接发光组件11，也可以将发光组件11发散的光进行反射，从而进一步提高光的利用率。
此外，背光模组10还包括电路板19，多个发光组件11呈均匀状分布于电路板19。
本实施例中，电路板19的设置为发光组件11提高电量支持，该电路板19上还可以设置其他用于控制的元器件。该电路板19平行于背光模组10的侧面，多个发光组件11均匀地设置于电路板19，可以使得提供的背光源均匀稳定，从而使最终出射的光强度于各个部分均匀分布。
本发明的另一个目的在于提出一种显示装置100，包括背光模组10和显示面板30，所述背光模组10为上述的背光模组10，所述显示面板30设于所述光学膜片15背离所述导光板13的一侧。由于显示装置100的背光模组10采用了上述所有实施例的全部技术方案，因此至少具有上述实施例的技术方案所带来的所有有益效果，在此不再一一赘述。
本实施例中，显示面板30为液晶显示面板30，其基板为玻璃材质，该显示面板30设于固定框16的安装段163上，具体为远离导光板13的阶梯槽1631内，与光学膜片15平行设置，并完全覆盖光学膜片15，从而使得背光模组10发出的光全部由显示面板30出射，提高画面质量。为了固定背光模组10与显示面板30，显示装置100还设有前框50，该前框50为金属材质，保证显示装置100结构的稳定性。
以上所述仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是在本发明的发明构思下，利用本发明说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本发明的专利保护范围内。

Claims (20)

  1. 一种背光模组，其特征在于，包括：
    多个发光组件，每一发光组件均包括发光芯片和罩于所述发光芯片的透光主体部；及
    若干光学膜片，所述光学膜片平行叠放设置，其中一光学膜片的表面设有量子点层，
    所述发光芯片发出的光透过所述光学膜片和量子点层，产生白光。
  2. 如权利要求1所述的背光模组，其特征在于，所述发光芯片包括有蓝光LED芯片与绿光LED芯片，所述量子点层为红色量子点层。
  3. 如权利要求1所述的背光模组，其特征在于，所述发光芯片包括有蓝光LED芯片与红光LED芯片，所述量子点层为绿色量子点层。
  4. 如权利要求1所述的背光模组，其特征在于，靠近所述发光组件的一光学膜片的表面设有所述量子点层，所述量子点层面向所述发光组件。
  5. 如权利要求1所述的背光模组，其特征在于，所述量子点层的量子点材料为钙钛矿。
  6. 如权利要求1所述的背光模组，其特征在于，所述量子点层的厚度范围为大于0mm，小于等于0.01mm。
  7. 如权利要求2所述的背光模组，其特征在于，所述量子点层的厚度范围为大于0mm，小于等于0.01mm。
  8. 如权利要求3所述的背光模组，其特征在于，所述量子点层的厚度范围为大于0mm，小于等于0.01mm。
  9. 如权利要求4所述的背光模组，其特征在于，所述量子点层的厚度范围为大于0mm，小于等于0.01mm。
  10. 如权利要求5所述的背光模组，其特征在于，所述量子点层的厚度范围为大于0mm，小于等于0.01mm。
  11. 如权利要求6所述的背光模组，其特征在于，该背光模组还包括导光板，所述发光组件邻近所述导光板的一端面，所述光学膜片面向所述导光板的一表面，该表面与发光组件邻近所述导光板的端面相连，所述量子点层设于所述光学膜片面向所述导光板的表面。
  12. 如权利要求7所述的背光模组，其特征在于，该背光模组还包括导光板，所述发光组件邻近所述导光板的一端面，所述光学膜片面向所述导光板的一表面，该表面与发光组件邻近所述导光板的端面相连，所述量子点层设于所述光学膜片面向所述导光板的表面。
  13. 如权利要求8所述的背光模组，其特征在于，该背光模组还包括导光板，所述发光组件邻近所述导光板的一端面，所述光学膜片面向所述导光板的一表面，该表面与发光组件邻近所述导光板的端面相连，所述量子点层设于所述光学膜片面向所述导光板的表面。
  14. 如权利要求9所述的背光模组，其特征在于，该背光模组还包括导光板，所述发光组件邻近所述导光板的一端面，所述光学膜片面向所述导光板的一表面，该表面与发光组件邻近所述导光板的端面相连，所述量子点层设于所述光学膜片面向所述导光板的表面。
  15. 如权利要求10所述的背光模组，其特征在于，该背光模组还包括导光板，所述发光组件邻近所述导光板的一端面，所述光学膜片面向所述导光板的一表面，该表面与发光组件邻近所述导光板的端面相连，所述量子点层设于所述光学膜片面向所述导光板的表面。
  16. 如权利要求11所述的背光模组，其特征在于，该背光模组还包括反射片，所述反射片贴设于所述导光板背离所述光学膜片的一表面，所述反射片的端部抵接所述发光组件。
  17. 如权利要求12所述的背光模组，其特征在于，该背光模组还包括反射片，所述反射片贴设于所述导光板背离所述光学膜片的一表面，所述反射片的端部抵接所述发光组件。
  18. 如权利要求2所述的背光模组，其特征在于，所述蓝光LED芯片发出的光波长范围为440nm~450nm。
  19. 如权利要求3所述的背光模组，其特征在于，所述蓝光LED芯片发出的光波长范围为440nm~450nm。
  20. 一种显示装置，其特征在于，包括如权利要求1所述的背光模组，所述背光模组包括：
    多个发光组件，每一发光组件均包括发光芯片和罩于所述发光芯片的透光主体部；及
    若干光学膜片，所述光学膜片平行叠放设置，其中一光学膜片的表面设有量子点层，
    所述发光芯片发出的光透过所述光学膜片和量子点层，产生白光。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI693455B (zh) * 2019-04-10 2020-05-11 瑞軒科技股份有限公司 發光二極體背光模組

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109887410B (zh) * 2019-03-28 2021-03-12 厦门天马微电子有限公司 一种显示装置及显示装置的制作方法
CN113777831A (zh) * 2021-09-14 2021-12-10 武汉华星光电技术有限公司 显示面板及电子装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007149500A (ja) * 2005-11-28 2007-06-14 Sony Corp 光源装置、表示装置、及び光源装置の製造方法
KR20120088273A (ko) * 2011-01-31 2012-08-08 엘지이노텍 주식회사 백라이트 유닛 및 그 제조 방법
CN103408984A (zh) * 2013-08-22 2013-11-27 广东普加福光电科技有限公司 光学涂层组合物、荧光光学膜片及其制备方法
CN105467673A (zh) * 2015-12-21 2016-04-06 南京先进激光技术研究院 量子点背光源及液晶显示装置
CN106501999A (zh) * 2016-11-11 2017-03-15 张家港海纳至精新材料科技有限公司 光学膜组和背光模块

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007149500A (ja) * 2005-11-28 2007-06-14 Sony Corp 光源装置、表示装置、及び光源装置の製造方法
KR20120088273A (ko) * 2011-01-31 2012-08-08 엘지이노텍 주식회사 백라이트 유닛 및 그 제조 방법
CN103408984A (zh) * 2013-08-22 2013-11-27 广东普加福光电科技有限公司 光学涂层组合物、荧光光学膜片及其制备方法
CN105467673A (zh) * 2015-12-21 2016-04-06 南京先进激光技术研究院 量子点背光源及液晶显示装置
CN106501999A (zh) * 2016-11-11 2017-03-15 张家港海纳至精新材料科技有限公司 光学膜组和背光模块

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI693455B (zh) * 2019-04-10 2020-05-11 瑞軒科技股份有限公司 發光二極體背光模組
US11079629B2 (en) 2019-04-10 2021-08-03 Amtran Technology Co., Ltd. LED backlight module

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